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1. 同济大学 材料科学与工程学院 上海,201804
2. 同济大学 先进土木工程材料教育部重点实验室 上海,200092
纸质出版日期:2013-2-10,
收稿日期:2012-12-11,
修回日期:2013-1-2,
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孙芳芳, 贺蕴秋, 李一鸣, 李乐, 储晓菲, 黄河洲. 透明导电ZnO薄膜的电化学制备及性能研究[J]. 发光学报, 2013,34(2): 218-224
SUN Fang-fang, HE Yun-qiu, LI Yi-ming, LI Le, CHU Xiao-fei, HUANG He-zhou. Transparent Conductive Properties of ZnO Thin Films Prepared by Electrochemical Deposition[J]. Chinese Journal of Luminescence, 2013,34(2): 218-224
孙芳芳, 贺蕴秋, 李一鸣, 李乐, 储晓菲, 黄河洲. 透明导电ZnO薄膜的电化学制备及性能研究[J]. 发光学报, 2013,34(2): 218-224 DOI: 10.3788/fgxb20133402.0218.
SUN Fang-fang, HE Yun-qiu, LI Yi-ming, LI Le, CHU Xiao-fei, HUANG He-zhou. Transparent Conductive Properties of ZnO Thin Films Prepared by Electrochemical Deposition[J]. Chinese Journal of Luminescence, 2013,34(2): 218-224 DOI: 10.3788/fgxb20133402.0218.
以修饰的ITO玻璃为衬底
以不同浓度Zn(NO
3
)
2
6H
2
O作为电解质溶液
采用阴极恒流沉积法制备了不同纳米结构的ZnO薄膜。用X射线衍射(XRD)、场发射扫描电镜(FE-SEM)、四探针仪(RTS-8)、紫外-可见(UV-Vis)光谱仪、循环伏安等分别表征薄膜的晶相、形貌和厚度、方块电阻、紫外-可见光透过率和氧化还原电位。结果表明:低浓度溶液沉积得到的
c
轴取向1D ZnO纳米柱和高浓度溶液沉积得到的致密2D六方ZnO纳米片在可见光范围(400~900 nm)的透过率均可高达85%以上
方块电阻约为14.5 /□。两种结构的氧化还原电位有显著区别
纳米柱的为-0.54 V(
vs.
SCE)
而纳米片的为-0.72 V(
vs.
SCE)
说明纳米片状的ZnO薄膜具有更为良好的化学稳定性。
By using the constant-current electrochemical method
nanostructure ZnO was deposited on the modified ITO substrate. the relationship between Zn(NO
3
)
2
6H
2
O concentration and the morphology
the crystalline phases
morphology and thickness
sheet resistances
transmittance
the oxidation and reduction potential were researched by XRD
FE-SEM
RTS-8
UV-Vis
Cyclic Voltammetry. The results indicated that one-dimensional(1D) nanopillars were prepared by low concentration of electrolyte
whereas two-dimensional(2D) nanodisks with compact hexagonal were obtainted by high concention of electrolyte. UV-Vis spectroscopy revealed that the transmittance of ZnO nanopillars and nanodisks were more than 85% at the range of 400~900 nm
RTS-8 analysis indicated that sheet resistances of ZnO thin films are about 14.5 /□
Cyclic Voltammetry analysis indicated significant differences of the potentials of oxidation and reduction between two kinds of morphology
whose ZnO nanopillars were -0.54 V(
vs.
SCE)and ZnO nanodisks were-0.72 V(
vs.
SCE)
respectively. The results revealed that ZnO thin films with nanodisks had better chemical stability.
ZnO薄膜恒电流修饰透明电极
ZnO filmsconstant-currentmodificationtransparency electrode
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